.layui-body .top-nav {
    display: flex;
    margin: 10px 0;
}

.layui-body .top-nav div {
    border: 1px solid #63B8FF;
    color: #63B8FF;
    text-align: center;
    width: 100px;
    padding: 5px;
    cursor: pointer;
}

.layui-body .top-nav .this-current {
    background-color: #63B8FF;
    color: #fff;
}

.mainModule {
    border: 1px solid #666;
    width: calc(100% - 10px);
}

.mainModule .add-and-search {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #ccc;
}

.mainModule .add-and-search .add {
    background-color: #63B8FF;
    color: #fff;
    border: 1px solid #63B8FF;
    padding: 5px 50px;
    margin: 5px;
    cursor: pointer;
}

.mainModule .add-and-search .search {
    height: 30px;
    line-height: 30px;
}

.mainModule .add-and-search .search .move-class {
    padding: 5px;
    border: 1px solid #666;
}

.mainModule .add-and-search .search .delete {
    padding: 5px;
    border: 1px solid #666;
}

.mainModule .add-and-search div {
    margin: 5px;
}

.imagetext {
    border: 1px solid #ccc;
}

.material-contain {
    display: flex;
    padding: 15px;
}

.grouping {
    width: 150px;
    float: left;
    height: 450px;
    background-color: #f1f1f1;
    font-size: 14px;
}

.grouping-title{
    padding: 5px;
    border-bottom: 1px solid #cccccc;
}

.grouping-add{
    float: right;
    color: #199ae4;
}

.material-contain-list {
    flex: 1;
    height: 1000px;
    border-top: none;
    margin: 0 10px 0 100px;
}

.grouping-item{
    height: 30px;
    line-height: 30px;
    padding: 0px 5px;
    background-color: #e0eafa;
}

.material-contain-wrapper {
    margin: auto;
}

.material-item {
    margin-bottom: 20px;
    float: left;
    width: 220px;
    border: 1px solid #e2e2e2;
}

.material-time {
    height: 36px;
    line-height: 36px;
    font-size: 12px;
    color: #999999;
    padding-left: 2%;
}

.material-item .big-img {
    width: 100%;
    height: 156px;
    position: relative;
}

.big-img-item {
    width: 100%;
    height: 156px;
}

.big-img-title {
    position: absolute;
    bottom: 0px;
    height: 30px;
    line-height: 30px;
    background-color: rgba(0, 0, 0, .6);
    color: #fff;
    width: 100%;
    overflow: hidden;
}

.chirden-item-list {
    height: 60px;
    display: flex;
    border-bottom: 1px solid #dddddd;
}

.chirden-item-img {
    width: 45px;
    height: 45px;
    margin: 10px 0 0 10px;
}

.chirden-item-img img {
    width: 45px;
    height: 45px;
}

.chirden-item-title {
    line-height: 60px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 12px;
}

.operations{
    display: flex;
    align-items: center;
    height: 36px;
    position: relative;
}

.operations-check{
    flex: 0.25;
    line-height: 36px;
    height: 20px;
}

.operations-edit{
    flex: 0.25;
    text-align: center;
    height: 36px;
    line-height: 36px;
    font-size: 20px!important;
    border-left: 1px solid #d2d2d2;
}

.operations-echange{
    flex: 0.25;
    text-align: center;
    justify-content: center;
    height: 36px;
    line-height: 36px;
    font-size: 28px!important;
    border-left: 1px solid #d2d2d2;
}

.operations-delete{
    flex: 0.25;
    text-align: center;
    justify-content: center;
    height: 36px;
    line-height: 36px;
    border-left: 1px solid #d2d2d2;
}

.cahnge-group{
    position: absolute;
    top: 40px;
    left: 0%;
    background-color: #fff;
    padding: 10px;
    border: 1px solid #eee;
    box-shadow: 1px 1px 3px rgb(122, 121, 121);
    z-index: 3;
}